DE202018003037U1 - Support structure for rake chains - Google Patents

Abstract

Supporting structure for carrying rake chains, characterized in that the support structure is provided with edge recesses (3, 53), wherein the edge recesses (3, 53) are dimensioned so that in them the threads of conventional rake chains can be clamped.

Description

The invention relates to a space-saving computational resources for learning exercises in the number range to 20 or 100 with balls / beads.

There are already various calculation frames and calculation lines known. As a rule, 20 or 100 spheres (or beads) are threaded onto two or ten rods in the computing framework, while the arithmetic cords are wound on a thread. To facilitate the use of these balls or pearls are usually colored differently in blocks of five. With these frames or strings, students can get support for number-range learning exercises up to 20, up to 100, and up to 1,000.

Most of these tools provide space to move the balls, so that the practitioners have room to demonstrate by moving the balls.

So describes DE9113425U1 a computing framework in which 10 x 100 ropes can be hooked in order to perform up to 1,000 learning exercises in the number space.

DE202012003688U1 describes a computer board on which 10 × 10 fields are shown. By covering individual fields, similar exercise options should be offered as with 100-count or 100-computational chains.

A disadvantage of the computing framework is that they are usually quite bulky. Given the tendency of students to take only small pencils to class, this makes it difficult to accommodate such a framework.

Remedy a lightweight calculator from rake (s) and support structure creates the main claim.

According to the invention, a supporting structure is provided for the attachment of 20 or 100 rake chains or the rake bars with rake balls. This support structure may consist of a plate made of plastic or hard cardboard, which is provided on their short sides with recesses. It can also be a frame with recesses on the outside are provided. These recesses are to be dimensioned so that the thread of a rake chain can be clamped therein. Preferably, the recesses are therefore to be designed so that they become narrower as the distance from the edge of the plate. So it is possible to use the plate for rake chains whose threads have different diameters.

Preferably, the computational chain baseplate or the computational frame is made rectangular. But it is also possible any other outer contour such as trapezoid, rhombus, square or any irregular outer shapes, as far as the device is still useful for the purpose stated.

If the arithmetic chain base plate or the computing frame is to be used with a chain of 20, two of the recesses described above must be provided on the left and right (= short) side (s). The upper and lower edges (= long sides) may be provided with additional recesses, e.g. can be used for the attachment of excess thread lengths.

For computing in the 100s number space, a correspondingly larger computing plate or a larger frame is to be used. A 20-frame can also be designed so that it can be extended via corresponding plug-in elements to the 100s size.

list of figures

• 1 shows a base plate according to the invention for a 20er computing chain.
• 2 shows a support plate according to the invention for a 100er computing chain in reduced to the upper and the lower area representation.
• 3 shows a calculator string frame for use with 20s computational chains.
• 4 shows a calculator string frame for use with 100 rake chains.
• 5 shows a 20-arithmetic chain support plate with additional equipment for installation for more convenient use.
• 6 shows in cross-section an installation aid, in which a data carrier plate can be adjusted.
• 7 shows a 20-arithmetic chain support frame with additional equipment for installation for more convenient use.
• 8th shows a bent-through data carrier plate, which can be used standing due to the deflection.

Detailed description

As in the 1 and 2 shown is the data carrier plate on the left edge ( 4L . 24L ) as well as on the right edge ( 4R . 24R ) with recesses ( 3 ), so that the thread of the rake chains can be clamped in these recesses. The beginning of such a computational chain thread is in the recess ( 3 ) clamped down on the left, then 10 computing balls are placed on the Rechenkettentragplatte, the remaining calculation balls on the thread shifted to the right and the thread in the recess ( 3 ) at the bottom right. The thread is behind the Rechenkettentragplatte to overlying recess ( 3 ) and also trapped there. Then the rest of the balls are placed on the data carrier plate and the thread to the left to the next free recess (20) 3 ) and also clamped there. If an overhanging remainder of the arithmetic chain thread remains, then this can be inserted into a free cutout at the upper edge ( 5o ) in a recess ( 6 ) are trapped.

In the case of a chain carrier plate for use with 100 rake chains, the procedure is continued analogously until the complete rake chain is fastened on the rake carrying plate and any excess thread length in one of the recesses ( 6 ) of the upper edge of the plate ( 25o ) has been trapped ..

When using a bendable data carrier plate, the arithmetic cords between the recesses ( 3 ) on the left ( 4L . 24R ) and the right side of the plate ( 4R . 24R ) are stretched so that the Rechenkettentragplatte is bent and so that the computing balls on the Rechenkettenfaden are freely displaced. The use is thus more comfortable than when the balls must be moved over the data carrier plate. The deflection of the plate also has the advantage that the data carrier plate does not have to be on the work surface, but that it can be placed as in 8th shown.

The application of a calculator string frame ( 52 . 72 ) takes place analogously to the preceding description with in the 3 and 4 illustrated frame.

Such a computational chain frame can be implemented in a particularly space-saving manner, in that a 20-frame consists of 4 sub-elements: upper frame part (FIG. 55o ), lower frame part ( 55u ), left frame part ( 4L ) and right frame part ( 4R ). The connection of the individual part can be carried out according to known in the prior art mechanisms for plug connection of rods. When using 100 frames, the execution can be analogous.

Does the entrainment of a supporting frame ( 72 ) for use with 100 rake chains as too bulky, the frame can also consist of individual elements. Base unit is then a put together Rechenklettentragrahmen for 20er Rechenketten, as he in 3 is shown. By an extension module (not shown), the left and right side parts of the frame can each be extended so that 100 rake chains can be mounted on the frame.

Around the data carrier design ( 2 . 22 . 52 . 72 ) to be able to use them more advantageously, it is advisable to use these with an erection aid ( 41 . 92 ) at an angle to the work surface. Advantageous for the use is an angle of about 45 °. This can be achieved by a simple support structure as used in the 5 and 6 is shown.

To make setting up with different angles more comfortable, the erection aid ( 41 ) are provided for Rechenbettentragplatten with multiple fixing slots. The erection aid ( 92 ) for the data carrier frame can be executed as a simple support rod. For its attachment to the upper support frame ( 55o . 75o ), any mechanism known in the art ( 95 ) are used for fixing a rod on a circular or oval profile.

There is also an economic aspect. Since most students are the first rulers' teaching tool to have computational chains, simple calculation frameworks can be created from the low-cost supporting structures in combination with the existing computational chains. This saves the purchase of comparatively much more expensive computing frameworks.

To equate the rake chains are rods with corresponding brackets that can be hooked into the device according to the invention instead of the 10 parts of the rake chains.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 9113425 U1 [0004]
• DE 202012003688 U1 [0005]

Claims (23)

Supporting structure for carrying rake chains, characterized in that the support structure is provided with edge recesses (3, 53), wherein the edge recesses (3, 53) are dimensioned so that in them the threads of conventional rake chains can be clamped. Supporting structure for carrying rake chains after Claim 1 , characterized in that the support structure is a data carrier plate (2, 22), wherein the plate may have any shaped edges. Supporting structure for carrying rake chains after Claim 2 , characterized in that the Rechenkettentragplatte (2, 22) is formed as a rectangle, preferably as a rectangle. Computing chain support plate (2, 22) after Claim 2 or 3 , characterized in that the support plate on the sides (4L, 4R) of the rectangle each have at least two recesses (3, 53) in order to clamp the threads of conventional 20er computing chains in groups of 10 can. Computing chain support plate (2, 22) after Claim 2 or 3 , characterized in that the support plate on the sides of the rectangle (24L, 24R) each having at least ten recesses in order to be able to clamp the threads of conventional 100 rake chains or multiple 20s chains in groups of 10 can. Computing chain support plate (2, 22) according to one of Claims 4 or 5 , characterized in that the not used for the computing balls recesses (6) can be used for clamping excess thread lengths. Computing chain support plate (2, 22) according to one of Claims 3 to 6 , characterized in that the support plate on the upper and lower side (5o, 5u, 25o, 25u) of the quadrilateral each recesses (6), preferably a plurality of closely adjacent recesses (6) in order to clamp excess lengths of the threads can. Computing chain support plate (2, 22) according to one of Claims 2 to 7 , characterized in that the upper and lower sides (5o, 5u, 25o, 25u) of the support plate have the length of at least 12 balls, preferably 21 balls. Computing chain support plate (2, 22) according to one of Claims 2 to 8th , characterized in that the support plate can be bent by tensioning the rake chain threads, whereby the calculation balls are freely movable on the rake chain thread. Supporting structure for carrying rake chains after Claim 1 , characterized in that the supporting structure is a frame (52, 72) with arbitrarily shaped edges. Supporting structure for carrying rake chains after Claim 10 , characterized in that the frame (52, 72) is formed as a rectangle, preferably as a rectangle with rounded corners. Computing chain support frame (52, 72) according to one of Claims 10 or 11 , characterized in that the frame is a tightly assembled frame. Computing chain support frame (52, 72) according to one of Claims 10 or 11 , characterized in that the frame is a frame formed of individual elements composable by the user. Computing chain support frame (52) according to one of Claims 10 to 13 , characterized in that the frame on the left and right sides (54L, 54R) of the rectangle in each case has at least two recesses in order to be able to clamp the threads of conventional 20 rake chains in groups of ten. Computing chain support frame (72) according to one of Claims 10 to 13 , characterized in that the frame on the left and right sides (74L, 74R) of the rectangle each have at least ten recesses in order to be able to clamp the threads of conventional 100 rake chains or a plurality of 20-rd chains in groups of 10. Computing chain support frame (52, 72) after Claim 14 , characterized in that the 20-frame (52) can be extended by additional frame elements for the use of 100 rake chains. Computing chain support frame (52, 72) according to one of Claims 10 to 16 , characterized in that the not used for the computing balls recesses (56) for clamping excess thread lengths can be used. Computing chain support frame (52, 72) according to one of Claims 10 to 17 , characterized in that the base frame on the upper and lower sides (55o, 55u, 75o, 75u) of the frame (52, 72) respectively recesses (56), preferably a plurality of directly adjacent recesses (36) to overlength of the threads to be able to clamp. Computing chain support frame (52, 72) according to one of Claims 12 to 16 , characterized that the upper side (55o, 75o) and the lower side (55u, 75u) of the base frame have the length of at least 12 balls, preferably 21 balls. Support structure for rake chains according to one of Claims 1 to 9 or 11 to 19 , characterized in that the support structure by a support structure (41, 92) can be placed at an angle to the footprint. Supporting construction for data carrier carrier plates Claim 20 , characterized in that the support structure consists of at least one plate (41) with at least one fixing slot (42). Supporting construction for data carrier carrier plates Claim 20 , characterized in that the support structure (43) consists of a plate with an integrally formed fixing slot (44), wherein the .Rechenkettentragplatte (2, 22) in the fixing slot (44) can be adjusted. Support structure for arbor support frame according to Claim 20 , characterized in that the support structure (41) consists of at least one rod (92) of fixed or variable length, which can be fixed to the upper frame part (55o, 75o) with a clamping device (95).

Images